Abstract
Matrix-assisted laser desorption ionization (MALDI) mass spectrometry has been used to obtain accurate molecular weight information for each subunit of several hydrophobic integral membrane proteins: cytochrome bo 3 (4 subunits) and cytochrome bd (2 subunits) from E. coli, and the be 1 complex (3 subunits) and the cytochrome c oxidase (3 subunits) from Rhodobacter sphaeroides. The results demonstrate that the MALDI method is a convenient, quick, sensitive and reliable means for obtaining the molecular masses of the subunits of purified multisubunit membrane proteins.
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Schedule a callMore From: Biochimica et Biophysica Acta (BBA) - Biomembranes
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